Run tests sequentially instead of in parallel

By default TextTest runs your tests in parallel. Sometimes that’s not what you want.

Solution 1: select “run sequentially” in the GUI

In the static GUI there is a checkbox under the “running” tab where you can select “run tests sequentially”. This will apply to all test runs triggered while this checkbox is enabled.

Solution 2: global configuration

If you want it to always run sequentially, add this line to your config file:


Why this works is a little obscure to me. The documentation for this config entry is here.